List of effects

This is a list of names for observable phenonema that contain the word effect, amplified by reference(s) to their respective fields of study.

#

*3D audio effect (audio effects)

A

*Accelerator effect (economics)
*Accordion effect (physics) (waves)
*Acousto-optic effect (nonlinear optics) (waves)
*Aharonov-Bohm effect (quantum mechanics)
*Alienation effect (acting techniques) (Bertolt Brecht theories and techniques) (film theory) (metafictional techniques) (theatre)
*Allais effect (fringe physics)
*Allee effect (biology)
*Ambiguity effect (cognitive biases)
*Anrep effect (cardiology) (medicine)
*Antenna effect (digital electronics) (electronic design automation)
*Anti-greenhouse effect (atmospheric dynamics) (atmospheric science) (astronomy) (planetary atmospheres)
*Askaryan effect (particle physics)
*Asymmetric blade effect
*Audience effect (psychology) (social psychology)
*Auger effect (atomic physics) (foundational quantum physics)
*Autler-Townes effect (atomic, molecular, and optical physics) (atomic physics) (quantum optics)
*Autokinetic effect (vision)
*Avalanche effect (cryptography)
*Averch-Johnson effect

B

*Balassa-Samuelson effect (economics)
*Baldwin effect (evolutionary biology) (selection)
*Balloon-carried light effect (balloons) (culture) (entertainment)
*Bambi Effect (hunting) (psychology stubs)
*Bandwagon effect (cognitive biases) (crowd psychology) (economics effects) (metaphors) (propaganda techniques)
*Barkhausen effect (condensed matter) (magnetism)
*Barnett Effect (condensed matter) (magnetism)
*Barnhouse effect
*Baskerville effect (cardiology)
*Bauschinger effect (classical mechanics) (materials science)
*Beaujolais effect (Ada programming language)
*Ben Franklin Effect (emotion)) (psychology)
*(Bernoulli effect: see) Bernoulli's principle (equations) (fluid dynamics) (wind power)
*Beta-silicon effect (physical organic chemistry)
*Bezold Effect (optical illusions) (psychological theories)
*(Bezold-Brücke effect: see) Bezold-Brücke shift (optical illusions)
*Biefeld-Brown effect (physical phenomena) (propulsion)
*Big-fish-little-pond effect (educational psychology)( (pedagogy)
*Birthday number effect (psychology)
*Black drop effect (astronomical transits)
*Blinovitch Limitation Effect (Doctor Who) (time travel in fiction)
*Blocking effect (psychology)
*Bloom (shader effect) (3D computer graphics) (demo effects)
*Bohr effect (protein)
*Boomerang effect (economics and finance)
*Bowditch effect (medicine)
*Bradley effect (American political terms) (elections in the United States) (political history of the United States) (political neologisms) ((politics and race) (polling) (psephology) (racism)
*Bridgman effect (electricity) (electromagnetism)
*Brookings effect (atmospheric science) (Curry County, Oregon) (Oregon coast) (Oregon geography) (winds)
*Brown Willy effect (geography of Cornwall) (mesoscale meteorology)
*Bruce effect (reproduction)
*Bullwhip effect (distribution, retailing, and wholesaling)
*Butterfly effect (chaos theory) (physical phenomena) (stability theory)
*bystander effect

C

*Cage effect (chemistry)
*Calendar effect (behavioral finance) (economics and finance) (market trends)
*Callendar effect (atmospheric science) (climate) (climate change)
*Captodative Effect (organic chemistry)
*Capture effect (broadcast engineering) (radio) (radio communications/) (telecommunications) (wireless communications)
*Carnoustie effect (golf) (golf terminology)
*Carryover effect (cooking techniques) (food and drink)
*Cascade effect (ecology)
*Cascade effect (spaceflight)
*Casimir effect (quantum field theory) (physical phenomena)
*Castle thunder (sound effect) (in-jokes) (sound effects)
*Catapult effect (electromagnetism)
*Catch-up effect (economics effects)
*Catfish Effect (human resource management) (management) (organizational studies and human resource management) (social psychology)
*Cause and effect
*Ceiling effect (medical treatment) (statistics)
*Cheerio effect (fluid mechanics) (physics)
*Cherenkov effect (experimental particle physics) (fundamental phyics concepts) (particle physics) (special relativity)
*chilling effect
*Chorus effect (audio effects) (audio engineering) (effects units) (sound recording)
*Christiansen effect (optical filters)
*Christofilos Effect (particle physics)
*Cinderella Effect (child abuse))
*Cluster effect (economics effects)
*CNN effect (civil-military relations) (CNN) (news media) (warfare of the modern era)
*Coandă effect (aerodynamics) (boundary layers) (physical phenomena)
*Coattail effect (political terms)
*Cocktail party effect (attention) (cognitive science)
*Cohort effect
*Common-ion effect (ions) (physical chemistry)
*Compton effect (astrophysics) (atomic physics) (foundational quantum physics) (observational astronomy) (quantum electrodynamics) (X-rays)
*Contrast effect (cognition) (cognitive biases) (perception) (vision)
*Coolidge effect (jokes) (sexual attraction)
*Coriolis effect (atmospheric dynamics) (classical mechanics) (force) (physical phenomena) (urban legends)
*Cotton effect (atomic, molecular, and optical physics) (polarization)
*Cotton-Mouton effect (magnetism) (optics)
*Crabtree effect (biochemistry)
*CSI Effect (criminal law) (criminology) (CSI [television franchise] ) (psychology) (television terminology)
*Cytopathic effect (microbiology terms)

D

*De Haas-van Alphen effect (condensed matter) (magnetism) (quantum physics)
*De Sitter effect (astrophysics)
*Debye-Falkenhagen effect
*Decoy effect (consumer behavior) (decision theory) (economic theories) (finance theory) (marketing)
*Delay (audio effect) (audio effects) (effcts units) (musical techniques)
*Dellinger effect (radio communications)
*Dember effect (electrical phenomena) (physics)
*Demo effect (demoscene)
*Demonstration effect (human behavior) (sociological terms)
*Digital effect
*Ding Hai Effect (economy of Hong Kong) (Hong Kong culture)
*Direct effect (European Union law)
*Disposal tax effect (economics and finance) (finance) (taxation)
*Disposition effect (economics and finance)
*Dole effect (climatology) (oxygen) (paleoclimatology) (photosynthesis)
*Domino effect
*Doppler effect (Doppler effects) (radio frequency propagation) (wave mechanics)
*Droste effect (artistic techniques)
*Dunning-Kruger effect (personality) (social psychology) (social sciences methodology)

E

*Early effect (transistors)
*Edge effect (ecological succession) (ecology)
*Edison effect (atomic physics) (electricity) (Thomas Edison) (vacuum tubes)
*Efimov effect (physics)
*Einstein effect
*Einstein-de Haas effect (science)
*Electro-optic effect (nonlinear optics)
*Electrocaloric effect (cooling technology) (heat pumps)
*Electron-Cloud Effect (particle accelerators) (physics)
*ELIZA effect (artificial intelligence) (human-computer interaction) (propositional fallacies)
*Embedding effect (environmental economics)
*Endowment effect (behavioral finance) (cognitive biases) (psychological theories)
*Enhanced Permeability and Retention effect (medicine)
*Eötvös effect (geodesy) (topography)
*Ettinghausen effect (condensed matter) (electrodynamics) (thermodynamics)
*Evershed effect (physics) (solar phenomena)
*Exciter (effect) (audio effects) (effects units)
*Expectancy effect

F

*False consensus effect (cognitive biases) (futurology) (group processes) (psychological theories) (sustainability)
*Faraday effect (magnetism) (optics)
*Ferroelectric effect (condensed matter physics) (electrical phenomena)
*Floating body effect (electronics) (semiconductors)
*Floodgate Effect (social phenomena) (sociology)
*Floor effect (statistics))
*Florence Nightingale Effect (Florence Nightingale) (love) (psychology)
*Flutie effect (student sport)
*Flynn effect (futurology) (intelligence) (psychological theories) (psychometrics) (race and intelligence controversy)
*Focusing effect (cognitive biases)
*Forbush effect (cosmic rays) (solar phenomena)
*Forer effect (cognitive biases) (history of astrology) (psychological theories)
*Founder effect (ecology) (population genetics)
*Fractional Quantum Hall Effect (physics)
*Franz-Keldysh effect (condensed matter) (electronic engineering) (electronics) (optics) (optoelectronics)
*Free surface effect (fluid mechanics)
*Fringing effect (Solenoids) (Magnetism)
*Front projection effect (film production)
*Fujiwhara effect (tropical cyclone meteorology) (vortices)
*Full screen effect (computer graphics) (demo effects)

G

*Garshelis Effect (electric and magnetic fields in matter) (magnetism) (physics)
*Gauche effect (stereochemistry)
*Generation effect (cognitive biases) (memory biases) (psychological theories)
*Geodetic effect (relativity)
*Gerschenkron effect (economic development) (economic systems) (economics and finance) (econometrics) (index numbers) (national accounts)
*Giant magnetoresistive effect (condensed matter physics) (electric and magnetic fields in matter) (quantum electronics) (spintronics)
*Gibbons-Hawking effect (general relativity)
*Gibbs-Donnan effect (biology) (physics)
*Gibbs-Thomson effect (petrology) (thermodynamics)
*Glass house effect (culture) (surveillance)
*Glasser effect (physics)
*Goos-H%C3%A4nchen effect (optical phenomena)
*Great Salt Lake effect (natural history of Utah)
*Green-beard effect (evolution) (evolutionary biology) (game theory) (selection)
*Greenhouse effect (atmosphere) (atmospheric radiation) (climate change feedbacks and causes) (climate forcing)
*Ground effect (aerodynamics)
*(Gunn effect: see) Gunn diode (diodes) (microwave technology) (physics) (terahertz technology)

H

*Haas effect (audio engineering) (sound) (speakers)
*Haldane effect (hematology) (hemoproteins) (protein)
*Hall effect (condensed matter physics) (electric and magnetic fields in matter)
*Hall of mirrors effect (computer graphic artifacts) (Doom) (id software) (video game glitches)
*Halo effect (cognitive biases) (educational psychology) (logical fallacies) (social psychology)
*Hanbury-Brown and Twiss effect (quantum optics)
*Harem effect (harem) (human sexuality) (sex) (sexual orientation and identity) (sexual orientation and society)
*Hawthorne effect (educational psychology) (psychological theories) (social phenomena)
*Health effect (health) (health effectors) (pollution)
*Holtzman effect (Dune technology) (physics in fiction)
*Horizon effect (artificial intelligence) (game artificial intelligence)
*Hostile media effect (cognitive biases) (criticism of journalism) (journalism standards) (psychological theories)
*Hundredth Monkey Effect (hoaxes in science) (New Age) (paranormal hoaxes) (urban legends)
*Hutchison effect (pseudophysics)
*Hydrophobic effect (chemical bonding) (supramolecular chemistry)
*Hyperchromic effect (biochemistry)
*Hypersonic effect (acoustics) (hearing) (psychology) (ultrasound)

I

*Ideomotor effect
*Imbert-Fedorov effect (optical phenomena)
*In-camera effect (filming) (special effects)
*Incidental effect (European Union law)
*Indirect effect (European Union law)
*Inductive effect (chemical bonding)
*Inert pair effect (atomic physics) (inorganic chemistry) (quantum chemistry)
*inertial supercharging effect (automobile) (engine technology)
*Inner-Platform Effect (anti-patterns)
*International Fisher effect (economics and finance) (finance theories) (interest rates)
*Inverse Doppler effect (Doppler effects) (wave mechanics)
*Inverse Faraday effect (electric and magnetic fields in matter) (optical phenomena)

J

*Jack-in-the-Box Effect (military) (military slang and jargon) (tanks)
*Jahn-Teller effect (condensed matter physics) (inorganic chemistry) (organometallic chemistry) (quantum chemistry)
*The Jake Effect (2000s American television series) (2006 television program debuts) (Bravo television series) (comedy television series) (NBC network shows) (sitcoms)
*January effect (behavioral finance) (economics and finance) (market trends) (stock market)
*Janus Effect (effects) (sociology)
*Josephson effect (condensed matter physics) (sensors) (superconductivity)
*The Jupiter Effect (astronomy) (science book)

K

*Kadenacy effect (automobile parts) (engine technology)
*Kappa effect (geography) (psychology)
*Kautsky effect (fluorescence)
*Kaye effect (fluid dynamics)
*Ken Burns Effect (film techniques)
*Kendall effect (telecommunications)
*Kerr effect (nonlinear optics)
*Keynes effect (economics and finance) (Keynesian economics)
*Keystone effect (technology)
*Kinetic depth effect (perception)
*Kinetic isotope effect (chemical kinetics) (physical organic chemistry)
*Kirkendall effect (chemistry) (metallurgy)
*Klein-Nishina effect (quantum field theory)
*Knife-edge effect (radio frequency propagation)
*Kohn effect (physics)
*Kondo effect (condensed matter physics) (electric and magnetic fields in matter) (physical phenomena)
*Kozai effect (astronomy) (celestial mechanics)
*Kuleshov Effect (cinema of Russia) (cognitive biases) (film editing) (film techniques) (psychological theories)

L

*Lake effect (snow or ice weather phenomena)
*Lake Wobegon effect (cognitive biases) (psychological theories) (social psychology)
*Landau–Pomeranchuk–Migdal effect (high-energy physics)
*Larsen effect (audio feedback)
*Late effect (disease)
*Lawn dart effect (psychology)
*Lazarus effect (particle detectors)
*LCD memory effect (display technology)
*Lead-lag effect (control theory) (economics and finance)
*Leakage effect (tourism)
*Lee-Boot effect (biology) (reproduction)
*Legalized abortion and crime effect (abortion debate) (criminology)
*Leidenfrost effect (physical phenomena)
*Lenard effect (physics)
*Lense-Thirring effect (effects of gravitation) (tests of general relativity)
*Leveling effect (chemistry)
*Levels-of-processing effect (educational psychology) (psychology) (psychological theories)
*Liquid Sky (effect) (lasers) (stage lighting)
*Little-Parks effect (condensed matter physics)
*Lockin effect (physics)
*Lotus effect (nanotechnology)
*Low-frequency effect (film sound production) (technology)
*Lubberts effect (medicine) (radiography) (radiology)
*Lunar effect (moon myths) (pseudoscience)

M

*Mach effect
*Magneto-optic effect (electric and magnetic fields in matter) (optical phenomena)
*Magneto-optic Kerr effect (condensed matter physics) (electric and magnetic fields in matter) (optical phenomena)
*Magnus effect (fluid dynamics)
*Mallenby Effect
*Malter effect (physics)
*Marangoni effect (fluid dynamics) (fluid mechanics) (physical phenomena)
*Mark Twain effect (economics and finance) (stock market)
*Martha Mitchell effect (psychological theories) (psychosis)
*Mass effect
*Massenerhebung effect (trees)
*Maternal age effect (developmental biology)
*Maternal effect (developmental biology)
*Matthew effect (adages) (sociology)
*McClintock effect (menstruation)
*McCollough effect (optical illusions)
*McGurk effect (auditory illusions) (perception) (psychological theories)
*Medusa effect, The (1998 novels) (Doctor Who) (novels by Justin Richards) (Virgin New Adventures)
*Meissner effect (levitation) (magnetism) (superconductivity)
*Meitner%E2%80%93Hupfeld effect (particle physics)
*Memory effect (electric batteries)
*Mesomeric effect (chemical bonding)
*Microwave auditory effect (cognitive neuroscience) (espionage) (hearing) (human psychology) (less-lethal weapons) (mind control) (sound)
*Mid-domain effect (macroecology) (biogeography) (biodiversity)
*Mikheyev-Smirnov-Wolfenstein effect (particle physics)
*Milky seas effect (aquatic biology) (biological oceanography) (bioluminescence)
*Miller effect (electrical engineering) (electronics terms)
*Miniature effect (film and video technology) (film techniques) (scale modeling) (scientific modeling) (special effects) (visual effects)
*Mirror effect, The (Bernice Summerfield audio plays)
*Misinformation effect (cognitive biases) (psychological theories)
*Missing letter effect (perception) (psychometrics)
*Misznay-Schardin effect (explosives)
*Mohring effect (microeconomics) (transportation)
*Morphail effect, The (Michael Moorcock's Multiverse) (science fiction) (time travel in fiction)
*Mössbauer effect (condensed matter physics) (nuclear physics) (physical phenomena)
*Mozart effect (education psychology) (popular psychology) (psychological theories) (Wolfgang Amadeus Mozart)
*Mpemba effect (phase changes) (physical paradoxes) (thermodynamics)
*Mullins effect (rubber properties)
*Multiple-effect humidification (drinking water)) (water supply) (water treatment)
*Munroe effect (explosive weapons) (explosives)

N

*Name letter effect (psychology)
*Negative (positive) contrast effect (psychology)
*Negativity effect (cognitive biases) (psychological theories)
*Nernst effect (electrodynamics) (thermodynamics)
*Network effect (business models) (economics effects) (information technology) (monopoly [economics] ) (networks) (transport economics)
*Non-thermal microwave effect (chemical kinetics)
*Nordtvedt effect (astronomy) (astrophysics) (effects of gravitation) (relativity) (theoretical physics)
*Novaya Zemlya effect (arctic) (atmospheric optical phenomena) (atmospheric science) (Novaya Zemlya) (solar phenomena)
*Novelty effect (learning) (psychology)
*Nuclear Overhauser effect (chemical physics) (nuclear magnetic resonance) (physical chemistry) (spectroscopy)

O

*Observer effect (cognitive biases) (philosophy of science) (types of scientific fallacy)
*Observer-expectancy effect
*Octave effect (effects units)
*Okorokov effect (physics)
*Oligodynamic effect (biology and pharmacology of chemical elements)
*Olivera-Tanzi effect (taxation)
*Online disinhibition effect (Internet culture) (psychology)
*Onnes effect (condensed matter physics) (fluid mechanics) (helium)
*Opposition effect (astronomy) (optical phenomena) (observational astronomy) (radiometry) (scattering, absorption and radiative transfer [optics] )
*Osborne effect (marketing)
*Ostrich effect (adages)
*Overconfidence effect (cognitive biases) (psychological theories)
*Overjustification effect (educational psychology) (psychological theories) (psychology)

P

*Park Effect (psychology)
*Paschen-Back effect (atomic physics) (atomic, molecular, and optical physics) (magnetism)
*Pasteur effect (beer and brewery) (biochemistry) (fermentation) (metabolism)
*(Paternal effect: see) maternal effect (developmental biology)
*Pauli effect (experimental physics) (parapsychology) (psychokinesis)
*Payne effect (rubber properties)
*Pearson-Anson effect (electronics)
*(Peltier-Seebeck effect) thermoelectric effect (electricity) (HVAC) (physical phenomena) (thermodynamics)
*Peltzman Effect (economics of regulation) (University of Chicago)
*Penn effect (economics effects)
*Petkau effect (radiobiology)
*Phaser (effect) (audio effects) (effects units)
*Phillips Effect (employment) (inflation)
*Photoelectric effect (Albert Einstein) (electrical phenomena) (foundational quantum physics)
*Photorefractive effect (nonlinear optics)
*Photothermal effect (particle physics) (photochemistry) (physics)
*Physical effect (physics)
*Picture superiority effect (cognitive biases) (educational psychology) (memory biases) (psychological theories)
*Piezoresistive effect (electrical phenomena)
*Pigou effect (economics effects))
*(Placebo effect: see) placebo (bioethics) (clinical research) (experimental design) (history of medicine) (Latin medical phrases) (Latin words and phrases) (medical ethics) (medical terms) (medicinal chemistry) (mind-body interventions) (pharmacology) (psychological theories) (research methods) (theories)
*Plasma effect (demo effects)
*Pockels effect (cryptography) (nonlinear optics) (polarization)
*Polar effect (physical organic chemitry)
*Polar effect (genetics) (genetics)
*Portevin%E2%80%93Le Chatelier effect (engineering) (materials science)
*Position-effect variegation (genetics)
*Positivity effect ((aging) (cognition) (cognitive biases) (memory) (memory biases) (psychological theories) (psychology)
*Poynting effect (gases)
*Poynting-Robertson effect (celestial mechanics)
*Practical effect (special effects)
*Pratfall effect (psychology)
*Primakoff effect (particle physics)
*Probe effect (software development philosophies) (system administration)
*Proximity effect
*Proximity effect (atomic physics) (nuclear physics) (physics)
*Proximity effect (audio) (acoustics)
*Proximity effect (electromagnetism) (electrical engineering)
*Proximity effect (electron beam lithography) (condensed matter physics)
*Proximity effect (superconductivity) (superconductivity)
*pseudocertainty effect
*Pulfrich effect (3D imaging) (optical illusions)
*Purkinje effect (optical illusions) (perception) (vision)
*Pygmalion effect (cognitive biases)

Q

*QMR effect (electric and magnetic fields in matter) (magnetism) (optics) (optical phenomena)
*Quantum Hall effect (Hall effect) (condensed matter physics) (quantum electronics) (spintronics)
*Quantum Zeno effect (quantum measurement)

R

*Ramp effect (drug addiction) (drug rehabilitation)
*Ramsauer-Townsend effect (physical phenomena) (scattering)
*Ransom note effect (typography)
*Rashomon effect (psychology)
*Ratchet effect (game theory)
*Rear projection effect (special effects)
*Rebound effect (medical sign)
*Rebound effect (conservation) (economics paradoxes) (energy) (energy conservation)
*Red-eye effect (science of photography)
*Relativistic Doppler effect (Doppler effects) (special relativity)
*Renner-Teller effect (molecular physics)
*Reverse Cerenkov effect (physics)
*(Reverse rotation effect: one form of) wagon-wheel effect (optical illusions)
*Reverse Short Channel Effect (transistors)
*Riemenschneider Effect (behavioral psychology)
*Ringelmann effect (social psychology)
*Ripple effect (education) (sociology)
*Robin Hood effect (income distribution) (Robin Hood) (socioeconomics) (taxation)
*Roe effect (abortion debate) (abortion in the United States)
*Rope trick effect (nuclear weapons)
*Rossiter-McLaughlin effect (Doppler effects) (extrasolar planets) (spectroscopy) (star systems)
*Rusty bolt effect (radio electronics)

*(Sabattier effect: see) solarisation (photographic processes) (science of photography)
*Sachs-Wolfe effect (astronomy) (physical cosmology)
*Sagnac effect (optics) (relativity)
*Samba effect (Brazil) (economy of Brazil) (history of Brazil)
*Sandbox effect (Internet technology) (search engine optimization)
*Scharnhorst effect (quantum field theory)
*(Schottky effect: see) Schottky diode (diodess)
*Screen-door effect (display technology) ((technology)
*Second-system effect (software development)
*Seeliger Effect (astronomy) (observational astronomy)
*Serial position effect (cognitive biases) (psychological theories) (psychologicy)
*Shaft effect (motorcycle)
*Shalabi Effect (1990s music groups) (2000s music groups) (Canadian post-rock groups) (musical collectives)
*Shapiro effect (effects of gravitation)
*Shielding effect (atomic, molecular, and optical physics) (atomic physics) (chemistry) (quantum chemistry)
*Shower-curtain effect (fluid dynamics)
*Shubnikov-De Haas effect (science)
*Side effect (computer science) (computer programming)
*Side effect (disambiguation)
*Signor-Lipps effect (extinction) (fossils) (paleontology)
*Silk screen effect (technology)
*Silo effect (management) (systems theory)
*Simon effect (psychology)
*Skin effect (electronics)
*Slashdot effect (denial-of-service attacks)(Internet terminology) (Slashdot)
*Sleeper effect (social psychology)
*Smith-Purcell effect (physics) (quantum optics)
*Snob effect (consumer theory) (economics and finance)
*Snowball effect (language) (metaphors)
*Sound effect (film techniques) (sound effects) (sound production) (special effects)
*Southwest effect, The (airline terminology) (Southwest Airlines)
*Sow's ear effect (economics and finance) (economics effects)
*Spacing effect (cognitive biases)) (educational psychology) (psychological theories)
*Special effect (animation) (special effects)
*Spin Hall effect (condensed matter physics) (Hall effect) (physics) (spintronics)
*Spoiler effect (psephology) (voting theory)
*Stark effect (atomic physics) (foundational quantum physics) (physical phenomena)
*Stars (shader effect) (3D computer graphics) (computer graphics) (demo effects)
*Status effect (video game gameplay)
*Stewart-Tolman effect (electrodynamics)
*Stock sound effect (film and video technology) (film and video terminology) (film terminology)
*Storage effect (demography) (population ecology)
*Stormtrooper effect (cartoon physics) (film criticism) (humor)) (plot devices) (Star Wars fandom)
*Streisand effect (dynamic lists) (eponyms) (slang)
*Stroop effect (perception) (psychological tests)
*Subadditivity effect (cognitive biases)
*Subject-expectancy effect (cognitive biases) (psychological theories)
*Sunyaev-Zel'dovich effect (physical cosmology) (radio astronomy)
*SVG filter effect (computer graphics) (computer graphics techniques) (image processing) (Scalable Vector Graphics)
*Sylvia Plath effect (psychology)

T

*Tanada effect (botany)
*Telescoping effect (memory biases) (psychology)
*(Tesla effect: see) wireless energy transfer (electric power transmission systems) (electricity distribution) (energy development) (Nikola Tesla)
*Testing effect (educational psychology) (memory)
*Tetris effect (memory) (Tetris)
*Thatcher effect (vision)
*Therapeutic effect(medical treatment) (pharmacology)
*Thermal flywheel effect (heat) (thermodynamics)
*Thermal Hall effect (condensed matter) (Hall effect) (superconductivity)
*Third-person effect (media studies)
*Thorpe-Ingold effect (chemical kinetics) (organic chemistry)
*Threshold effect (particle physics) (physics) (renormalization group)
*Tinkerbell effect (sociology)
*Training effect (cardiovascular system) (exercise physiology) (medicine) (respiratory system) (sports terminology)
*Trans effect (coordination chemistry)
*Transformer effect (electrodynamics)
*Transverse flow effect (aerodynamics)
*Trench effect (fire)
*Triboelectric effect (electrical phenomena) (electricity)
*Trickle up effect
*Trickle-down effect (marketing)
*Twisted nematic field effect (display technology) (liquid crystal displays) (liquid crystals)
*Twomey effect (air pollution) (atmospheric radiation) (clouds, fog and precipitation)
*Tyndall effect (physical phenomena) (scattering)

U

*Umov effect (astronomy) (observational astronomy) (planetary science)
*Unruh effect (quantum field theory) (thermodynamics)
*Urban heat island effect (climate change feedbacks and causes) (climate forcing)

V

*Vandenbergh effect (biology)
*Vaporific Effect (fire)
*(Veblen effect: see) Veblen good (consumer theory) (goods)
*Venturi effect (fluid dynamics)
*Venus effect (artistic techniques) (cognitive science) (film techniques) (mirrors) (psychology)
*Voigt Effect (magnetism) (optics)
*Von Restorff effect (cognitive biases) (psychological theories)
*Vroman effect (molecular and cellular biology)

W

*Wagon-wheel effect (optical illusion)
*Wahlund effect (evolution) (population genetics)
*Wallace effect (evolutionary biology) (speciation)
*Warburg effect (biochemistry) (oncology) (photosynthesis)
*Wealth effect (economics and finance) (wealth)
*Weathervane effect (aviation terminology)
*Wedding ring effect (social psychology)
*Weissenberg effect (physics)
*Wet floor effect (computer graphic techniques) (computer graphics) (Web 2.0)
*Whitten effect (menstruation)
*Wigner effect (condensed matter physics) (nuclear technology) (physical phenomena) (radiation effects)
*Wilson effect (astronomy) (Sun)
*Wilson-Bappu Effect (physics)
*Wimbledon effect (economic theories) (economy of Japan) (economy of London)
*Windkessel effect (physiology)
*Wing In Ground effect (aerodynamics)
*Withgott Effect (linguistics) (phonetics)
*Wolf effect (scattering) (spectroscopy)
*Wolff-Chaikoff effect (iodine) (medicine)
*Woodward effect (propulsion)
*Word superiority effect (cognitive science)
*Worse-than-average effect (cognitive biases) (psychological theories) (social psychology)

X

Y

*Yarkovsky effect (celestial mechanics)
*Yarkovsky-O'Keefe-Radzievskii-Paddack effect (celestial mechanics)

Z

*Zeeman effect (atomic physics) (foundational quantum physics) (magnetism) (physical phenomena)
*Zeigarnik effect (cognitive biases) (educational psychology) (learning) (psychological theories)